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JOSEPH D. POTTS, OF PHILADELPHIA, AND BENJAMIN P. LAMASON, OF MILTON, PENNSYLVANIA, ASSIGNORS TO EMPIRE TRANSPORTATION COMPANY Letters Patent No. 104,765, dated June 28, 1870.

IMPROVED RIEIIRIG-ER'ATQR4 RAILROAD CAR.

v'Ii-'lite Schedule referred to in these Letters Patent and. making part of the same To all whoa?. it may concern: I

Be it known that we, JOSEPH 1). Porrs, of Philadelphia, inthe county of Philadelphia and State of Pennsylvania, and BENJAMIN P. LAMnsoN, of Milton, in the county of Northumberland and State of. Pennsylvania, have invented a new and useful Improvement on Railroad Cars,'fr transporting butter, eggs, fruit, and other perishable merchandise; and we do hereby declare that the following is a full, clear, and exact description of theconstruction and opera- -tion of the same, reference heilig had` to the annexed drawing making a part of this specication, in which- Figure 1 is a longitudinalsectional elevation;

Figure 2 is a transverse sectional elevation Figure 3 is au end elevation;

Figure 4 is a front view ofyentilator; and

Figure 5 is a'transverse sectional view ot ventilator.

To enable others skilled in the art to make and use our invention, we will .proceed to vdescribe its construction and operation.

XVe construct Your car-body after any of the suitable known plans. \Ve place it upon railroad' car-trucks of the usual pattern. 4Weline the roof', sides, and ends of car-body, seen at La a, 85e., igs. 1 and 2, in the accompanying drawing. The lining a a, 526e., is Other suitable material can,.however, be used. i l f The interstice b between the insider-lining a a, &c, and outside sheeting c, we vcolnpactl y fill with dry sawdust or its equivalent.

The car is provided with inside doors, shown at A, B, and O, lig. 1. These doors are so constructed as to admit of being packed, and are packed same as car-body, sides, 85o.

' One-halt' of the door is made in two parts, seen,at B and C', lig. 1. The object 'in so constructing them is that convenient ingress may be had to the car when loaded. Should the lading, while in transit, be-thrown against the lower portion of the door O, thereby obstructing it, the upper part B4 can be readily opened, and free ingress be had to the car.

We also provide our car with twolice-boxes, one at either end of car, shown at D, gs. 1 and 2. Ihese boxes are provided with waste-pipes d and an apron,

l c. The utility of the apron is hereafterdescribed.

An aperture is made in the front of ice-box at f, corresponding in dimensions to ventilators E, shown at E E,.&c., figs. 1, 3, 4, and 5. i

The ventilator'E is composed of iron or other suitable metal, and is constructed with a front and back opening, seen at It and -I. vlhe front opening his at the bottom, and is formed by the front m extending from the top downward the desired distance. The back opening I is likewise formed by the back n extending upward and outward the proper distance. The object of the vents or openings h andr I is to admit air into the car, while rain, cinder, and other objectionable matt-er are excluded, by means oi the back n.

When the ventilators E and ice-boxes D are constructed as herein described, an aperture of suitable size is made iu vends of car-body, and ventilators E are put in them, and are secured therein by means of screws through the holes o, ig. 4. When thus in place the ice-boxes D are put in position, and secured by means of the iron straps P and S and woodeneleat t. The aperture f in ice-box D comes immediatelyr over the opening I in ventilator E. The apron e, in ice-box D, is inclined inward and downward, and extends a little below the opening I, in ventilator E.

Having thus described the construct-ion of' our im` provenienti, its operation is explained as follows:

All things being constructed and arranged as here-in described, ice is put into the box D through the opening w.y Then the car is in motion a current of air passes in through the openings h and I of ventilator E, and as it comes in contact with the apron e, in icebox D, it is forced down upon the ice, mingling with which it is thereby cooled, and its moisture condensed. It then passes, dried and cooled, out through opening w, into body of car, cooling the temperature of the car to such a degree that butter, eggs, fruit, and other perishable articles can be preserved during their transit between distant points. As this air loses its coolness it passes out ofthe car through the ventilator at the other end thereof'. l

Now, what we claim as our invention, and desire to secure by Letters Patent, is

1. The ventilator E, constructed with the openings h and I, substantially. as and for the purpose set forth.

2. The ice-box D, with the apron c, arranged substantially as and for the purpose described.

3. In combination with the above, the inside doors A, B, and O, constructed substantially' as herein described.

JOS. D. POT'IS. B. P. LAMASON. Witnesses:

A. D. HEPBURN, C. O. McConMIcx. 

